CXAR4185 CXAR4185A CXAR4185B是一个单声道、无滤波器的D类音频放大器，可在WLCSP-9封装中使用。增益可以通过外部输入电阻来设置。高PSRR和差分架构提高了对噪声和RF整流的免疫力。除了这些功能外，CXAR4185 CXAR4185a CXAR4185B的启动时间快、封装体积小，是蜂窝手机和掌上电脑的理想选择。CXAR4185 CXAR4185A CXAR4185B可以在5V时驱动1.5W，或在3.6V时驱动730mW至8W，也可以驱动4W。CXAR4185 CXAR4185A CXAR4185B采用D级架构，与AB级放大器相比，工作效率更高。它适用于电源敏感的应用，如电池供电的设备。无滤波器结构消除了输出滤波器，减少了外部元件数量、板面积和系统成本，简化了设计。此外，CXAR4185 CXAR4185A CXAR4185B提供热保护和过电流保护。
·工作电压：2.4V-5.5V
·效率高达90%
·低供电电流
–VDD=5V时，I DD=2mA
–VDD=3.6V时，I DD=1.6mA
·低关断电流–VDD=5V时，I DD=1mA
·1%THD+N时的输出功率
–2.4W，VDD=5V，RL=4W（WLCSP-9）
–2.1W，VDD=5V，RL=4W时
–1.2W，在VDD=3.6V时，在10%THD+N时，RL=4W
–3.1W，VDD=5V，RL=4W（WLCSP-9）
–2.65W，VDD=5V，RL=4W时
–1.3W，在VDD=3.6V，RL=4W时
·所需外部组件更少
·快速启动时间（4ms）
·高PSRR:217赫兹时80分贝
·热保护和过电流保护
·节省空间包WLCSP-9泵
·提供无铅和绿色设备（符合RoHS）
-
[ CXAR4185/A ]
目录
7.相关产品
产品概述 返回TOP
The CXAR4185/A CXAR4185B is a mono, filter-free Class-D audio amplifier available in WLCSP-9 packages. The gain can be set by an external input resistance. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the CXAR4185/A CXAR4185B an ideal choice for both cellular handsets and PDAs. The CXAR4185/A CXAR4185B is capable of driving 1.5W at 5V or 730mW at 3.6V into 8W. It is also capable of driving 4W. The CXAR4185/A CXAR4185Bis designed with a Class-D architecture and operating with highly efficiency compared with Class-AB amplifier. It's suitable for power sensitive application, such as battery powered devices. The filter-free architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the CXAR4185/A CXAR4185B provides thermal and over-current protections.
产品特点 返回TOP
· Operating Voltage: 2.4V-5.5V
· High Efficiency up to 90%
· Low Supply Current
– I DD =2mA at VDD =5V
– I DD =1.6mA at VDD =3.6V
· Low Shutdown Current – I DD =1mA at VDD =5V
· Output Power at 1% THD+N
– 2.4W, at VDD =5V, RL =4W (WLCSP-9)
– 2.1W, at VDD =5V, RL =4W
– 1.2W, at VDD =3.6V, RL =4W at 10% THD+N
– 3.1W, at VDD =5V, RL =4W (WLCSP-9)
– 2.65W, at VDD =5V, RL =4W
– 1.3W, at VDD =3.6V, RL =4W
· Less External Components Required
· Fast Startup Time (4ms)
· High PSRR: 80 dB at 217 Hz
· Thermal and Over-Current Protections
· Space Saving Packages WLCSP-9 Bump
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· Mobile Phones
· Handsets
· PDAs
· Portable multimedia devices
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
|
Audio Products > Speaker Amplifier |
||||||||||||||||||
|
Part_No |
Package |
Cla -ss |
VDD Voltage (V) |
IDD, Supply Current (mA) |
TSTART-UP (uS) |
Output Power RL=4W(W) |
Output Power RL=8W (W) |
Head- phone Mode Output Power RL=32W(mW) |
Total Harmoni Dist. Plus Noise (%) |
Power Suppl Rej. Ratio dB |
Output Noise (uV) |
Signal to noise Ratio dB |
Output Offset Voltage (mV) |
Digital Input |
Head phone |
AGC Power limit |
Mute |
|
|
min |
max |
|||||||||||||||||
|
SOP-8 |
AB |
3 |
5.5 |
1 |
0.4 |
1.5 |
0.9 |
NA |
0.15 |
74 |
28 |
NA |
20 |
N |
N |
N |
N |
|
|
MSOP8/P/ TDFN3x3-8 |
AB |
2 |
5.5 |
3 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 DFN3x3-8 |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 |
D |
2 |
5.5 |
3 |
NA |
2.2 |
1.3 |
NA |
0.05 |
70 |
100 |
89 |
20 |
N |
N |
N |
N |
|
|
WLCSP1.2 x1.2-9 TDFN3x3-8 |
D |
2 |
5.5 |
2 |
0 |
2.45 |
1.3 |
NA |
0.1 |
75 |
55 |
90 |
1 |
N |
N |
N |
N |
|
|
WLCSP1.5 x2-12 TQFN4x4-16 |
G |
3 |
5.2 |
4 |
0.6 |
3.6 |
2 |
N/A |
0.06 |
70 |
49 |
97.5 |
2 |
N |
N |
N |
N |
|
|
TSSOP24P TSSOP20P TQFN3x2-16 |
AB |
3 |
5.5 |
6 |
NA |
1.7 |
1.1 |
90 |
0.04 |
85 |
15 |
105 |
5 |
N |
Y |
N |
N |
|
|
TQFN4x4-16 TQFN3x3-16 |
AB |
3 |
5.5 |
6 |
0.7 |
2 |
1.3 |
52 |
0.06 |
61 |
22 |
93 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-20A |
AB |
2 |
5.5 |
6 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
TQFN4x4-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TSSOP-28P TQFN5x5-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32 |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
SOP-16P |
AB |
5 |
5.5 |
9 |
1 |
1.8 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
3 |
5.5 |
9 |
1.6 |
2 |
1.3 |
95 |
0.09 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TSSOP-24P |
AB |
5 |
5.5 |
14 |
NA |
1.9 |
1.1 |
90 |
0.05 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TQFN3x3-16 |
D |
2 |
5.5 |
3 |
0 |
2.3 |
1.34 |
NA |
0.15 |
74 |
100 |
85 |
5 |
N |
N |
N |
N |
|
|
SOP-16P |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.4 |
NA |
0.1 |
55 |
75 |
90 |
20 |
N |
N |
N |
Y |
|
|
SOP-24 DIP-24 QFN4x4-20A |
D |
3 |
5.5 |
7 |
1.6 |
2.2 |
1.3 |
60 |
0.1 |
70 |
75 |
82.5 |
5 |
N |
Y |
A |
Y |
|
|
SOP-16 QDN4x4-20A |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.1 |
NA |
0.1 |
70 |
75 |
85 |
10 |
N |
N |
A |
Y |
|
|
SSOP24/ QFN4x4-20A |
D |
3 |
5.8 |
8 |
1.4 |
2.4 |
1.7 |
70 |
0.1 |
80 |
50 |
92 |
5 |
N |
Y |
A |
Y |
|
|
SSOP24/P SOP-18 QFN4x4-20A |
D |
3 |
5.5 |
5 |
1.2 |
2.3 |
1.3 |
NA |
0.1 |
70 |
80 |
85 |
20 |
N |
N |
A |
Y |
|
|
SSOP-24/P |
D |
3 |
5.5 |
5 |
1.2 |
2.25 |
1.3 |
68 |
0.06 |
60 |
80 |
78 |
20 |
N |
Y |
A |
Y |
|
|
TQFN5x5-32 |
D |
8 |
17 |
18 |
1 |
NA |
12 |
NA |
0.07 |
65 |
230 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
7 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
8 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
12 |
0.1 |
NA |
65 |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
QFN5.2 x6.2-32 |
D |
8 |
17 |
18 |
1 |
NA |
14 |
NA |
0.05 |
65 |
250 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
15 |
NA |
0.1 |
65 |
160 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
22 |
17 |
0 |
NA |
15 |
NA |
0.05 |
65 |
130 |
95 |
5 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
26 |
17 |
0 |
NA |
17 |
NA |
0.05 |
70 |
120 |
95 |
5 |
N |
N |
P |
N |
|
|
TQFN7 x7-48/P |
D |
9 |
14 |
20 |
NA |
NA |
7.5 |
NA |
0.2 |
85 |
250 |
85 |
20 |
N |
N |
N |
N |
|
|
SOP8/P MSOP8P |
AB |
3 |
5.5 |
7 |
0.4 |
2.3 |
1.3 |
NA |
0.04 |
60 |
28 |
NA |
NA |
N | N | N | N | |
◀ 上一篇:CXAD4169增益可调10W立体声D类音频功放芯片每通道BTL输出功率10W通过PBTL引脚增大输出功率输出短路热保护功能短路保护和热保护功能可以自动恢复4阶可选增益控制输出功率 2*10W
下一篇▶:CXAR4186 CXAR4186A是单声道无滤波器的D类音频放大器外部输入电阻降低增益非限幅功能提供最大15dB增益降低避免输出信号的限幅高PSRR和差分架构提高了对噪声和RF整流的免疫力
| 头条信息 |
|---|
